Branding-iron



J. C. GARNER.

BRANDING IRON.

APPLICATION FILED JUNE 5, 1920.

1,357,230. Patented Nov. 2, 1920.

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J. C. GARNER.

BRANDING lROl V. APPLlCATlQN FILED JUNE 5.1920.

Patented Nov. 2, 1920.

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UNITED STATES PATENT OFFICE.

JOSEPH C. GARNER, OF DETROIT, MICHIGAN, ASSIGNOR TO DETROIT ELECTRICAL BRANDING IRON COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICH- IGAN.

BRANDING-IBON.

Specification of Letters Patent.

Patented N v. 2, 1920.

Application filed June 5, 1920. Serial No. 886,881.

To all whom it may concern:

Be it known that I, JOSEPH C. GARNER, citizen of the United States, residin at Detroit, county of Wayne, State of hfichigan, have invented a certain new and useful Improvement in Branding-Irons, and declare the following to be a full, clear, and

' exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyin drawings, which form a part of this speci cation.

This invention relates to an electric branding iron and the method of constructing same, shown in the accompanying drawings and more particularly described in the following specifications and claims.

The object of my invention is to produce a simple and inexpensive branding iron which is especially designed for branding tires, tools or other articles for purposes of identification.

With the foregoing and other objects in view which will appear as the description proceeds, the invention further resides in the combination and arrangement of parts and in the details and method of construction hereinafter described, it being understood that changes may be made in the precise embodiment of the invention herein disclosed without departing from the spirit of the same.

In the accompanying drawings forming part of this specification Figure 1 is a side elevation of the branding iron.

Fig. 2 is an inverted plan view of the iron.

Fig. 3 is an end elevation with parts broken away and in section.

Fig. 4 is a cross-sectional View through the heating element and inclosing case, taken on or about line 4-4 of Fig. 2.

Fig. 5 is a horizontal sectional view taken on or about line 5-5 of Fig. 4.

Fig. 6 is a cross-sectional view through a form adapted to support a series of convolutions of a metallic ribbon forming the heating element, prior to the latter being embedded in an insulating composition of powdered asbestos mixed with water glass or silicate of soda.

Fig. 7 is a similar sectional view through the form and metallic heating element,

showing the latter partially embedded in the mixture of asbestos and water glass.

Fig. 8 is a sectional view through a somewhat similar form showing the partially covered heating element lodged therein, ready to receive a further charge of the asbestos composition whereby the projectin ed es of the metallic ribbon may be covere ig. 9 is a similar sectional view through the form showing the asbestos insulation completely incasing the metallic ribbon.

Fig. 10 is a cross-sectional view through the heating element inclosed in a metallic jacket cast thereon, and housed in the divided supporting shell of the branding iron.

Referring now to the letters of reference placed upon the drawings A, denotes a chambered casting to which is attached a die plate B, by bolts 0.

D, is a bale-like member secured to the casting to which is spot welded or otherwise secured a forked or U-shaped member E, between the spaced ends of which is secured a handle F, by a bolt G, extending therethrough. H, indicates a hand guard and heat deflector spaced from the handle, secured at each end to the member E. I, indicates an electric heating element in its entirety. I I are wires, leading from the heating element, inclosed in a cable I extending upwardly through a thimble J, supported in the wall of the chambered casting A, and also through a divided sleeve K, secured to the member E, by bolts K, or other engaging devices. L, indicates the usual wire guard coil surrounding the cable adjoining the connection between the latter and the iron.

The heating element consists of a metallic ribbon M, preferably coiled as indicated in Fig. 5, so that the ends M, M, of the ribbon or terminals, may be adjacent to each other for convenience in connecting the leadwires I, I, therefrom.

N indicates a form, having an annular upstanding wall or rim N, spirally grooved as indicated at N to receive the edge of the metallic ribbon M, which is coiled thereon in the manner indicated in Fig. 5. A mixture of powdered asbestos and silicate of soda, as indicated at P, is then introduced between the coils of the metallic ribbon and so as to cover its edges as shown in Fig. 7. The heating element is then removed and inserted in a reversed position in a somewhat similar form Q,w1thout the grooves N The projecting edges of the heating element formerly supported in the grooves N of the form N, are now covered with the insulating asbestos and silicate of soda composition as shown in Fig. 7, thus completely inclosing the metallic coil.

A metallic covering or shell R, is then cast around the asbestos inclosed heating element, an opening It, being provided through which the wires I, I, may be connected with the ends or terminals of the coil. The unit I, is then inclosed in the chambered casting A, as shown in Fig. 10, and the die platesecured in position.

It will now be seen that a very simple, effective and inexpensive heating element and branding iron is the result.

Having thus described my invention, what I claim is 1. In a branding iron, a heating element consisting of a metallic ribbon forming a coil, an insulating covering in which the coil is embedded, a cast metal shell surrounding the insulating covering of the coil to form a self contained heating unit, with an opening through the metal shell for the passage of wires connected with the heating element, a chambered shell open on one side to receive the heating unit, and a branding plate covering said opening into the chambered shell and secured to the latter.

2. In a branding iron, a chambered shell for housing a heating element, a branding plate adapted to cover the opening into the chambered shell and secured thereto, a forked member secured to the chambered shell, a non-heat-conducting handle bridging said forked member and secured thereto, a heat deflector and guard consisting of a metallic strip spaced from the handle and secured at each end to the forked member,

nsu'aaao a self-contained heating. element lodged in the chambered shell and means for connecting said heating element with a source of electrical energy.

3. In a device of the character described, a heating element comprising a metallic ribbon forming a coil, an insulation consisting of a composition of powdered asbestos and water glass, or silicate of soda, in which said coil is embedded, and an undivided cast metal shell completely inclosing the insulation surrounding said coil.

4:. In a device of the character described, the method and process of construction a selfcontained electric heating element, con-' sisting in first coiling a suitable metallic ribbon in a supporting form adapted to grip one edge of the ribbon, whereby the coils of the ribbon are held in spaced relation to each other, then introducing between the coil and above the upper edge of the latter an insulating composition consisting of powdered asbestos and silicate of soda or water glass, then removing said coil from the grooves of the supporting form, then covering the projecting portion and edge of the coil with a like insulating composition of asbestos and silicate of soda or water glass, whereby said coil is completely embedded in said insulation, with an opening provided for connecting the coil with a source of electrical energy, and then casting an undivided metallic shell about said insulated heating element to completely inclose the latter, said shell also having an opening through its wall for the passage of wires for connection with the heating coil.

In testimony whereof, I sign this specification in the presence of two witnesses.

JOSEPH C. GARNER. Vfitness:

S. E. THOMPSON, JOHN CoNsIDINE, Jr. 

